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Technical specifications

Absolute maximum ratings

Parameter Min Typ Max Unit
Supply Input Voltage (USB) -0.3 - +5.7 V
Supply Output Current - MikroBUS +5V - - 2.0 A
Supply Output Current - MikroBUS +3.3V - - 2.0 A
Supply Output Current - Arduino +5V - - 1.0 A
Supply Output Current - Arduino +3.3V - - 2.0 A
Supply Output Current - Grove Vcc output - - 1.0 A
Storage Temperature -40 - +85 °C
Parameter Min Typ Max Unit
Supply Input Voltage (USB) +2.5 +5.0 +5.5 V
Supply Input Current (WiFi off, LEDs & display on) - 70 90 mA
Supply Input Current (WiFi, LEDs & display on) - 105 150 mA
Power consumption (WiFi, LEDs & display on) - 0.5 0.75 W
Operation Temperature -20 - +60 °C
Humidity Range / non-condensing - - 95 %RH
STM32F413 operating frequency - 100 (1) 100 MHz

(1) default configuration for the mbed target.

Wi-Fi Specifications (TI CC3120R)

Wi-Fi modes:

  • 802.11b/g/n

Security:

  • WPA2 Personal and Enterprise Security: WEP, WPA/WPA2 PSK, WPA2 Enterprise (802.1x)
  • Secure Sockets: SSLv3, TLS1.0/1.1/TLS1.2 (integrated on the CC3210, newer versions can be further supported from the main MCU application)
  • Secure Key Storage
  • Software Tamper Detection

TX Power:

  • 18.0dBm@1DSSS
  • 14.5dBm@54OFDM

RX Sensitivity:

  • -96.0dBm @ 1DSSS
  • -74.5 dBm @ 54 OFDM

On-board PCB Antenna:

  • Return loss @ WiFi bands (2.412-2.472 GHz): -19.4 dB max. (VSWR: 1.24:1)
  • Bandwidth (defined @ VSWR 2:1): 200 MHz

External u-Fl connector:

  • Characteristic impedance: 50 Ω
  • Maximum output power: 18.0dBm

I/O Characteristics

All I/Os are CMOS and TTL compliant. The following characteristics are based on the STM32F423ZH datasheet:

Parameter Min Typ Max Unit
Input logic LOW level voltage - - 0.9 V
Input logic HIGH level voltage 2.3 - - V
Input hysteresis 0.1 - - V
Weak pull-up equivalent resistor 30 40 50 kΩ
Weak pull-down equivalent resistor 30 40 50 kΩ
I/O pin capacitance - 5 - pF

Notes:

  • For I/O timings and maximum operating frequency of the different peripherals (I2C, SPI, UART, I2S) please refer to the STM32F413ZH datasheet.
  • The main oscillator is driven by the external crystal Y4 (16.000 MHz ± 10 p.p.m.).
  • The low frequency oscillator is driven by the crystal Y3 (32.768 kHz ± 20 p.p.m.).

Solid-state outputs characteristics

Toshiba TLP241A:

Parameter Min Typ Max Unit
ON-state current (continuous) - - 2 A
ON-state current (pulsed, t=100 mseg, duty=10%) - - 6 A
ON-state resistance (continuous) - 90 150 mΩ
Isolation voltage 5,000 - - V
Maximum DC voltage (1) - - 26 V[dc]
Maximum AC voltage (1) - - 20 V[rms]

(1) Limited by the protection varistors (R63 and R69).

Mechanical Dimensions

Dimension Value Unit Comment
External dimensions 100.97 x 65.79 x 19 mm
Mounting holes diameter 3.25 mm for M3 screws size
Mounting holes distances 93.22 (X), 58.17 (Y) mm